docs: def servers(self):
          """gets all the server resources"""
          self.__init()
          items = []
          for k,v in self._json_dict.items():
              if k == "servers":
                  for s in v:
                      if 'id' in s:
                          url = "%s/%s" % (self.root, s['id'])
                          items.append(
                              self.Server(url=url,
                                          securityHandler=self._securityHandler,
                                          proxy_url=self._proxy_url,
                                          proxy_port=self._proxy_port))
              del k,v
          return items